This file consists of my Smart Board Geometry Lines and Angles file and my Lines and Angles printables bundled together. When used together, they are a powerful way to help your students understand all the various lines and angles, and learn how to use a protractor.
Topics covered in these interactive and colorful files are:
• Points, lines, line segments, rays
• Types of Lines: parallel, intersecting, perpendicular
• Review of vertical, horizontal, and diagonal lines
• Types of Angles: acute, right, obtuse, straight
• How to use a protractor to measure angles
• How to use a protractor to sketch angles of a given measure
• How to use a landmark angle measure, such as 90° to estimate other angle measures
• Finding missing angle measures
You will receive a 25 page SMARTBoard file full of interactive, self-checking activities on the above topics. Students will love coming up to the board to check answers! Every activity on the SMARTBoard is also included in the 29 page printable pdf file, so all students will stay engaged in the lessons. The printables include an assessment at the end as well as answer keys for every page. I used this with great success in my 4th grade classroom, but it would also work as review for 5th grade, as well. My students scored extremely well this spring on the geometry strand of their math testing.
I introduce geometry with this file and then follow up with my Geometry SMARTBoard and Printables Bundle: Polygons
IMPORTANT! Please note that you must have Smart Notebook or compatible software on your computer in order to use the SMARTBoard file. If you have a different type of interactive white board, please download the preview file first to see if the interactive features work.
Common Core Standards Addressed in This File:
• 4.G.A.1 Draw points, lines, line segments, rays, angles (right, acute, obtuse), and perpendicular and parallel lines. Identify these in two-dimensional figures.
Geometric measurement: understand concepts of angle and measure angles.
• 4.MD.C.5 Recognize angles as geometric shapes that are formed wherever two rays share a common endpoint, and understand concepts of angle measurement:
• 4.MD.C.5a An angle is measured with reference to a circle with its center at the common endpoint of the rays, by considering the fraction of the circular arc between the points where the two rays intersect the circle. An angle that turns through 1/360 of a circle is called a “one-degree angle,” and can be used to measure angles.
• 4.MD.C.5b An angle that turns through n one-degree angles is said to have an angle measure of n degrees.
• 4.MD.C.6 Measure angles in whole-number degrees using a protractor. Sketch angles of specified measure.
• 4.MD.C.7 Recognize angle measure as additive. When an angle is decomposed into non-overlapping parts, the angle measure of the whole is the sum of the angle measures of the parts. Solve addition and subtraction problems to find unknown angles on a diagram in real world and mathematical problems, e.g., by using an equation with a symbol for the unknown angle measure.
I also have sets of Geometry Vocabulary Cards for both Lines & Angles and Polygons.
Geometry Vocabulary Cards for Lines and Angles
Geometry Vocabulary Cards for Polygons
Please let me know if you have any questions.
Thanks for checking out my file!
Cathy, aka Downeast Teach